how do I add a premade .sawnd without messing up the original characters sfx

[Brightshadow360]

here is what I have: I have luffy over an Ike clone, a luffy.sawnd file, internetexplorer6's replacment soundbank engine, and a burning desire to give luffy his own sfx without messing up Ike's sounds.

I can easily make the sounds work, but then Ike gets luffys sounds too. I know I have to replace a boss's soundbank (or the forbidden 7, but I don't know where their soundbanks are), but I can't get it to work.

what I have attempted:
1. named the sfx 319.sawnd in the sfx folder to replace metaridely
2. changed luffy's soundbank (using the clone tool) to 13F